Well you have to be unpredictable more than anything. Realize that just because it's your main hand (if right handed of course) it's probably not being thrown with everything. Keep your left close, make sure to move your head and dont forget its not a sin to slip and move your feet. Be swift and keep it tight. Use your feints, establish a jab, etc. that's the basics. Just a matter of how competent you and your opponent/sparring partners are. Don't know what kind of relationship you have at the gym, but ask around, use it in sparring ask what's giving it away with your coach/trainer or partners if youre cool like that. Of course if youre very observant of your body and movements you can find a what point of your delivery it's being tracked and tweak from there like you do any other punch. Do NOT over extend or stick your head too far out. It comes with time, don't worry. Its okay to make mistakes.

No line breaks...dont know if theres typos this is on my phone so...sorrryy

Oops. I was under the impression that he wanted to learn how to throw a "Mayweather" type, counter right.

Totally misinterpreted OP.

Yeah, pivot your feet, and twist from the hips. Try to generate power from the ground to the end of your punch. Rotate your fists at the last second, and bring the punch back to your chin ASAP. Otherwise you'll leave it out there to be countered with a jab.

Oops. I was under the impression that he wanted to learn how to throw a "Mayweather" type, counter right.

Totally misinterpreted OP.

Yeah, pivot your feet, and twist from the hips. Try to generate power from the ground to the end of your punch. Rotate your fists at the last second, and bring the punch back to your chin ASAP. Otherwise you'll leave it out there to be countered with a jab.

I think that's exactly what OP was asking for .. Lead right hand, no set up with the jab.